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Yeah, he's working out.
New here? I'm Roha — want a quick tour?
because he can't reach button 17, he's too short, or he's a dwarf
Added 4 minutes later
and the enzyme is probably endorphin, the same one produced when you eat chocolate, it's called the happiness hormone.
Vasily came home from work and was about to go to bed. Looking at the clock, he realized that someone was in the apartment.
Anticipating your questions: the clock is shaped like a saucer, without an alarm, guess the other details yourself.